Granted Patent
Utility
US 5,239,873 · App. 07/810,482
Flexible seal removal resistance tester
Inventor:
Gary B. Cox
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Dec 19, 1991
Inventor
Gary B. Cox
Assignee (at issue)
Kraft General Foods, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.